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BOSTON MARATHON 2025

Adam Clark

Bib: 1950•M

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 22%
Masters (Masters Men)
#0 / 10463
Top 9%
Division (M40-44)
#0 / 2247
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:19
Rank: #1954
Start → 5K
19:19 | 6:13/mi
10K· 6.21 mi
38:32
Rank: #1880 (+74)
5K → 10K
19:13 | 6:11/mi
15K· 9.32 mi
58:05
Rank: #2003 (-123)
10K → 15K
19:33 | 6:18/mi
20K· 12.43 mi
1:17:59
Rank: #2130 (-127)
15K → 20K
19:54 | 6:24/mi
Half· 13.11 mi
1:22:23
Rank: #2179 (-49)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:38:14
Rank: #2309 (-130)
Half → 25K
15:51 | 6:32/mi
30K· 18.64 mi
1:59:19
Rank: #2452 (-143)
25K → 30K
21:05 | 6:47/mi
20M
2:09:20
Rank: #2672 (-220)
30K → 20M
10:01 | 7:22/mi
21M
2:16:57
Rank: #2789 (-117)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:22:18
Rank: #2879 (-90)
21M → 35K
5:21 | 7:09/mi
23M
2:31:53
Rank: #3062 (-183)
35K → 23M
9:35 | 7:39/mi
24M
2:39:24
Rank: #3228 (-166)
23M → 24M
7:31 | 7:31/mi
40K· 24.85 mi
2:46:21
Rank: #3461 (-233)
24M → 40K
6:57 | 8:08/mi
25.2M
2:49:37
Rank: #3627 (-166)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
2:57:08
Rank: #3770 (-143)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:23
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:34:45
Pace7:14 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5719:196:1319:19
6:13
-
10K
6.21 mi10:39:1038:326:1219:13
6:11
-0:02
15K
9.32 mi10:58:4358:056:1419:33
6:18
+0:07
20K
12.43 mi11:18:371:17:596:1719:54
6:24
+0:06
Half
13.11 mi11:23:011:22:236:174:24
6:27
+0:03
25K
15.53 mi11:38:521:38:146:1915:51
6:32
+0:05
30K
18.64 mi11:59:571:59:196:2421:05
6:47
+0:15
20M
20.00 mi12:09:582:09:206:2810:01
7:22
+0:35
21M
21.00 mi12:17:352:16:576:317:37
7:37
+0:15
35K
21.75 mi12:22:562:22:186:335:21
7:09
-0:28
23M
23.00 mi12:32:312:31:536:369:35
7:39
+0:30
24M
24.00 mi12:40:022:39:246:397:31
7:31
-0:08
40K
24.85 mi12:46:592:46:216:426:57
8:08
+0:37
25.2M
25.20 mi12:50:152:49:376:443:16
9:28
+1:20
Finish
26.22 mi12:57:462:57:086:467:31
7:23
-2:05

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:11 /mi

Average Pace

6:46 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:14

55% of race

Time at Steady Pace

51:29

29% of race

Time at Slower Pace

27:25

15% of race

Average Pace: 6:45 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:19:5719:196:1319:19
6:13
#1954
10K
6.21 mi10:39:1038:326:1219:13
6:11
#1880
15K
9.32 mi10:58:4358:056:1419:33
6:18
#2003
20K
12.43 mi11:18:371:17:596:1719:54
6:24
#2130
Half
13.11 mi11:23:011:22:236:174:24
6:27
#2179
25K
15.53 mi11:38:521:38:146:1915:51
6:32
#2309
30K
18.64 mi11:59:571:59:196:2421:05
6:47
#2452
20M
20.00 mi12:09:582:09:206:2810:01
7:22
#2672
21M
21.00 mi12:17:352:16:576:317:37
7:37
#2789
35K
21.75 mi12:22:562:22:186:335:21
7:09
#2879
23M
23.00 mi12:32:312:31:536:369:35
7:39
#3062
24M
24.00 mi12:40:022:39:246:397:31
7:31
#3228
40K
24.85 mi12:46:592:46:216:426:57
8:08
#3461
25.2M
25.20 mi12:50:152:49:376:443:16
9:28
#3627
Finish
26.22 mi12:57:462:57:086:467:31
7:23
#3770
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1954185718572303(Top 8%)2198(Top 14%)2198(Top 98%)
10K6.21 mi3.10 mi1880+741789+681789+681840(Top 6%)1748(Top 11%)1748(Top 78%)
15K9.32 mi3.11 mi2003-1231907-1181907-1182303(Top 8%)2198(Top 14%)2198(Top 98%)
20K12.43 mi3.11 mi2130-1272033-1262033-1262551(Top 9%)2432(Top 15%)2432(Top 108%)
Half13.11 mi0.68 mi2179-492079-462079-463359(Top 12%)3185(Top 20%)3185(Top 142%)
25K15.53 mi2.42 mi2309-1302203-1242203-1243077(Top 11%)2918(Top 18%)2918(Top 130%)
30K18.64 mi3.11 mi2452-1432339-1362339-1363353(Top 12%)3131(Top 19%)3131(Top 139%)
20M20.00 mi1.36 mi2672-2202547-2082547-2086171(Top 22%)5302(Top 33%)5302(Top 236%)
21M21.00 mi1.00 mi2789-1172656-1092656-1095176(Top 18%)4497(Top 28%)4497(Top 200%)
35K21.75 mi0.75 mi2879-902734-782734-786227(Top 22%)5200(Top 32%)5200(Top 231%)
23M23.00 mi1.25 mi3062-1832896-1622896-1627565(Top 27%)5895(Top 37%)5895(Top 262%)
24M24.00 mi1.00 mi3228-1663044-1483044-1487756(Top 27%)5950(Top 37%)5950(Top 265%)
40K24.85 mi0.85 mi3461-2333245-2013245-20111024(Top 39%)7560(Top 47%)7560(Top 336%)
25.2M25.20 mi0.35 mi3627-1663384-1393384-13914317(Top 50%)9046(Top 56%)9046(Top 403%)
Finish26.22 mi1.02 mi3770-1433501-1173501-1178271(Top 29%)6047(Top 38%)6047(Top 269%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2303

Males

2198

M40-44

2198

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1840

Males

1748

M40-44

1748

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2303

Males

2198

M40-44

2198

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2551

Males

2432

M40-44

2432

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3359

Males

3185

M40-44

3185

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3077

Males

2918

M40-44

2918

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3353

Males

3131

M40-44

3131

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6171

Males

5302

M40-44

5302

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

5176

Males

4497

M40-44

4497

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6227

Males

5200

M40-44

5200

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7565

Males

5895

M40-44

5895

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7756

Males

5950

M40-44

5950

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

11024

Males

7560

M40-44

7560

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14317

Males

9046

M40-44

9046

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8271

Males

6047

M40-44

6047

Passing Analysis

Category:
Athletes Passed
400
Passed By
2216
Net Change
-1816
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1954
5K → 10K14672+74#1954#1880
10K → 15K27150-123#1880#2003
15K → 20K35162-127#2003#2130
20K → Half352-49#2130#2179
Half → 25K21151-130#2179#2309
25K → 30K54197-143#2309#2452
30K → 20M13233-220#2452#2672
20M → 21M21138-117#2672#2789
21M → 35K16106-90#2789#2879
35K → 23M19202-183#2879#3062
23M → 24M14180-166#3062#3228
24M → 40K7240-233#3228#3461
40K → 25.2M6172-166#3461#3627
25.2M → Finish18161-143#3627#3770
TOTALS4002216-1816
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing